Image settings for dark frames

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Steve Teel
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Joined: Wed Mar 07, 2018 4:39 pm

Image settings for dark frames

Post by Steve Teel » Sun Mar 11, 2018 8:59 pm

When creating dark frames are the image settings (Brightness, White Bal (R), White Bal (B)) significant?

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admin
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Re: Image settings for dark frames

Post by admin » Sun Mar 11, 2018 10:44 pm

Hi,

for the colour balance, just use the same values for the dark as the light frames.

Brightness should be either the same or lower in the dark frames. Having a lower brightness in the dark frames than the light frames will introduce a uniform pedestal value to the dark subtracted image, but may lead to a more natural look near the black point in the final image as it avoids clipping of negative values (where the dark pixel is a brighter value than the light pixel).

cheers,

Robin

Steve Teel
Posts: 2
Joined: Wed Mar 07, 2018 4:39 pm

Re: Image settings for dark frames

Post by Steve Teel » Mon Mar 12, 2018 7:37 pm

Thanks for the informative insight.

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